ft_strjoin.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: chrhuang <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2018/11/08 10:33:18 by chrhuang          #+#    #+#             */
/*   Updated: 2018/11/08 15:34:40 by chrhuang         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*new;

	if (s1 == NULL || s2 == NULL)
		return (NULL);
	if ((new = ft_strnew(ft_strlen(s1) + ft_strlen(s2) + 1)) == NULL)
		return (NULL);
	if ((new = ft_strcat(new, s1)) == NULL)
		return (NULL);
	if ((new = ft_strcat(new, s2)) == NULL)
		return (NULL);
	return (new);
}